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eMMC Fuses And Card did not respond to voltage select! I.MX6UL

Question asked by Nacho Diz on Jul 27, 2017
Latest reply on Jul 27, 2017 by Yuri Muhin
Branched to a new discussion

Dear all

 

We was able to modify MFG tool for eMMC flashing in our custom Automotive I.MX6 UL board


Micron 4.4.1 2GB

 

 

After failing

 

BOOTCFG1:   0X6D    
BOOTCFG2:   0XCA     8 bit DDR

 

We tried

 

BOOTCFG1: 0X6D 
BOTCFG1:    0X0A      1 bit SDR

 

And it works!
2 of 10 boards booted fine from eMMC


Can I now program for 8 bit SDR ?

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8 of 10 boards show "Card did not respond to voltage select!" when triing to flash with MFG Tool

 

Its strange that 8 boards were bad assembled so i hope its a software error

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How can i ensure sd is working in 8 bit mode + DDR

 

King Regards!

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